A setter definition, that is, the keyword ‘assign’, followed by the name of the value and the definition (either a block or a lazy specifier terminated by a semicolon), preceded by annotations.


assign diameter => radius = diameter / 2;
assign diameter {
    throw AssertionError("Can’t set the diameter of the unit circle");

no subtypes hierarchy

ValueSetterDefinition(LIdentifier name, Block|LazySpecifier definition, Annotations annotations = ...)
  • name

    The name of the value that this setter assigns to.

  • definition

    The definition of the setter.

  • annotations = Annotations()

    The annotations of the setter.

annotationsSource Codeshared actual Annotations annotations

The annotations of the setter.

childrenSource Codeshared actual [LIdentifier, Block|LazySpecifier, Annotations] children

The child nodes of this node.

definitionSource Codeshared Block|LazySpecifier definition

The definition of the setter.

hashSource Codeshared actual Integer hash

The hash value of the value, which allows the value to be an element of a hash-based set or key of a hash-based map. Implementations must respect the constraint that:

  • if x==y then x.hash==y.hash.

Therefore, a class which refines equals must also refine hash.

Refines Object.hash
nameSource Codeshared actual LIdentifier name

The name of the value that this setter assigns to.

Inherited Attributes
Attributes inherited from: Node
Attributes inherited from: Object
copySource Codeshared ValueSetterDefinition copy(LIdentifier name = ..., Block|LazySpecifier definition = ..., Annotations annotations = ...)
  • name = this.name
  • definition = this.definition
  • annotations = this.annotations
equalsSource Codeshared actual Boolean equals(Object that)

Determine if two values are equal. Implementations should respect the constraints that:

  • if x===y then x==y (reflexivity),
  • if x==y then y==x (symmetry),
  • if x==y and y==z then x==z (transitivity).

Furthermore it is recommended that implementations ensure that if x==y then x and y have the same concrete class.

A class which explicitly refines equals() is said to support value equality, and the equality operator == is considered much more meaningful for such classes than for a class which simply inherits the default implementation of identity equality from Identifiable.

transformSource Codeshared actual Result transform<out Result>(Transformer<Result> transformer)

Transform this node with the given transformer by calling the appropriate transformX method on the transformer.

If you have a Node node that’s actually an LIdentifier instance, then the runtime will call LIdentifier.transform; therefore, this method is by nature narrowing. This means that if transformer is a NarrowingTransformer, calling node.transform(transformer) is equivalent to calling transformer.transformNode(node). On the other hand, if transformer is a WideningTransformer, then the two operations are very different.

Inherited Methods
Methods inherited from: Node